Pressing arrangement

A method in a pressing arrangement (100) for treatment of at least one article by means of hot pressing, the pressing arrangement including a pressure vessel (2) comprising a furnace chamber (18) comprising a furnace, wherein the furnace chamber is at least in part surrounded by a heat insulated casing (6, 7, 17) and comprises a load compartment (19) arranged within the furnace chamber, the load compartment configured to hold at least one article to be treated, wherein the furnace chamber is arranged so as to allow for a flow of pressure medium through the load compartment, the furnace chamber comprising at least one pressure medium guiding passage (12) at least in part formed between the heat insulated casing and the load compartment and being in fluid communication with the load compartment so as to form an inner convection loop, wherein pressure medium in the inner convection loop is guided through the load compartment and through the at least one pressure medium guiding passage of the furnace chamber and back to the load compartment, or vice versa, the method comprising:

• selectively impeding or obstructing pressure medium flow in at least a portion of the at least one pressure medium guiding passage of the furnace chamber by means of at least one adjustable throttle (15), thereby selectively impeding or obstructing a flow of pressure medium in the inner convection loop.